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05-29-2009, 03:15 AM | #1 |
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why?? stock wheel not wider
i know there is a point where going wider on wheels becomes a waste too much weight, neg effects handling,,but since everyone is upgrading to wider wheels why wouldnt they just come from bmw factory like this with 10.5 rears. maybe stupid question but if they helped grip so much wouldnt bmw just do it?
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05-29-2009, 03:28 AM | #2 |
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For the same reason they didn't release the car 1" lower, 500 lbs lighter, with 50 more HP and 100 ft-lbs more torque. Just because they could doesn't mean they should.
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05-29-2009, 03:31 AM | #3 | |
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05-29-2009, 07:20 AM | #4 |
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They did it so enthusiasts could completely re-engineer it and finally get it right and feel good about fixing all of BMW's shortcomings.
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05-29-2009, 09:38 AM | #5 | |
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My previous C6 Z06 on monster tires was nothing short of amazing on the track, but it could be scary at 65 mph on the freeway in heavy rain because of hydroplaning. There's nothing that will give you an adrenalin rush quicker than water skiiing in a high-performance car.
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05-29-2009, 09:42 AM | #6 |
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because they wouldn't want to create an M3 that understeers....
plus wider rear wheel = more unsprung weight and more rolling resistance which negatively affects performance |
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05-29-2009, 09:43 AM | #7 |
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Well,ice skating will! Good response, swamp.
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05-29-2009, 10:07 PM | #8 |
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Don't forget about gas mileage in the compromise equation. I think the two biggest variables when it comes to this are performance and gas milage. The cost difference between making a 9.5" wide wheel vs. a 10" wide wheel is negligible and anti-hydroplaning characteristics falls under performance (but is more of a tire trait than wheel width). Same with comfort.
The more performance-oriented the toal package, the higher the cost and upkeep (see Ferrari, Porsche, etc.), and the lesser the waranty. I think a better question is why did BMW go with 1/2" widths at all (most brands go with widths on the whole number). I think BMW could have went with 18x9 and 18x10, 255/35 and 275/35 with very little ill-affect on gas mileage and comfort, and not much more cost. |
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05-29-2009, 10:47 PM | #9 | |
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05-30-2009, 08:48 PM | #10 |
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Well I can say that I after putting 255/35/19 F and 295/30/19 R on mine that I didn't see much of an increase in higher cornering limits like I thought I would. It looks mean from the back, but from a performance standpoint the increase is marginal at best if any at all.
I am sure it helps with traction (if the M3 had more TQ than it does) but from a cornering standpoint, I don't think so.
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